Furnace Blower Low Speed Only

The furnace operates for two minutes or so before it shuts down.

Furnace blower low speed only.

Your furnace s manual tells you whether or not the furnace is blowing low medium or high. An incorrect low torque setting yields low blower speed. Mars makes the azure motor that s like it. It has a replaceable surge protector standard which is great since most ecm failures are electrical that blow sacrificial thermistors.

This isn t always the case though so it s important to check the speed with the manometer. I know that the blower motor should have 3 speeds i checked the wiring when testing the capacitor the heat wire is connected to the med speed and the cool wire is connected to the high speed. Looks like low is 1 2 of the highest speed for a better constant fan and use very little juice. If your unit has either of these then the low speed problem may have other causes.

For example ecm motors have an electronic digital driver that is set using dip switches or other means. Comfort sup sup 95 ultra low nox gas furnace 59su5 https. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. Our 90 afue rating gas furnaces include two heat.

Models with variable speed blower and inducer motors can deliver consistent temperature control all year long and enhanced humidity control as a part of your air conditioning system. The gas kicks on and is lit by the ignitor. We have 2 of these furnaces and the functioning one is much louder and blows a lot more air at both settings i just wanted to clear that. It wires similarly and works the same with 1 2 speed constant fan.

Not only that but our energy star. While the black is high the blue is medium and the yellow is often low.